Traction control is built into the ECU and does not require anything else to purchase. It is still an experimental feature and because of this requires 'unlocking'. You can contact us via email to get the process to unlock experimental features.
There is no wireless logging module for the ECU. There is on-board data storage in the ECU to log data while running. Also, the PE3 uses Ethernet to communicate with the laptop. Because of this you can use a standard wireless router to communicate wirelessly with the ECU.